What should i do.

I have multiple containers that started have some cobweb looking growth. I sprayed heavily with peroxide but I'm worried about my plants drinking peroxide and not water for the next 3 months. I did the peroxide thing like 3 days ago. The still minimal cobwebs. What should I do

I have multiple containers that started have some cobweb looking growth. I sprayed heavily with peroxide but I'm worried about my plants drinking peroxide and not water for the next 3 months. I did the peroxide thing like 3 days ago. The still minimal cobwebs. What should I do